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Supplementary Spec Table
Supplementary KS Specifications — 2 sizes
KS B ISO 2553
Supplementary symbols for weld finishing (grinding, convex, concave) and field/all-around welding.
Practical Notes
- Indicates weld finishing (grinding, convex, concave) and field/all-around welding instructions.
KSSupplementary
2 sizes| Name | Type | Symbol | Description | Dimension | Note |
|---|---|---|---|---|---|
| Back Side Weld | Supplementary | ⌒ | Back Side Weld | - | |
| Back Side Weld | Supplementary | ⌣ | 1Pass After Back Side Finished | - | Quality Improved |
Key Features
- Supplementary weld info: field weld (flag), all-around (circle), backing (rectangle) symbols
- Tail section specifies welding process (SMAW/GMAW/GTAW) and inspection (RT/UT) codes
- Finishing symbols (G: grinding / M: machining / C: chipping) specify post-weld surface treatment
Key Applications
Field construction weld instructions, seal welds (all-around), back-side backing designation, NDT requirements, post-weld finishing